package com.atguigu.gulimall.cart.controller;

import com.atguigu.gulimall.cart.interceptor.CartInterceptor;
import com.atguigu.gulimall.cart.service.CartService;
import com.atguigu.gulimall.cart.to.UserInfoTo;
import com.atguigu.gulimall.cart.vo.Cart;
import com.atguigu.gulimall.cart.vo.CartItem;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.ResponseBody;
import org.springframework.web.servlet.mvc.support.RedirectAttributes;

import javax.servlet.http.HttpSession;

import java.util.List;
import java.util.concurrent.ExecutionException;

import static com.atguigu.common.constant.AuthServerConstant.LOGIN_USER;

@Controller
public class CartController {

    @Autowired
    CartService cartService;

    @GetMapping("/currentUserCartItems")
    @ResponseBody
    public List<CartItem> getCurrentUserCartItems(){
        return cartService.getCurrentUserCartItems();
    }

    @GetMapping("/cart.html")
    public String cartListPage(Model model) throws ExecutionException, InterruptedException {
        Cart cart = cartService.getCart();
        model.addAttribute("cart", cart);
        return "cartList";
    }

    @GetMapping(value = "/checkItem")
    public String checkItem(@RequestParam(value = "skuId") Long skuId,
                            @RequestParam(value = "check") Integer check) {

        cartService.checkItem(skuId, check);

        return "redirect:http://cart.gulimall.com/cart.html";

    }

    /**
     * 改变商品数量
     * @param skuId
     * @param num
     * @return
     */
    @GetMapping(value = "/countItem")
    public String countItem(@RequestParam(value = "skuId") Long skuId,
                            @RequestParam(value = "num") Integer num) {

        cartService.changeItemCount(skuId,num);

        return "redirect:http://cart.gulimall.com/cart.html";
    }


    /**
     * 删除商品信息
     * @param skuId
     * @return
     */
    @GetMapping(value = "/deleteItem")
    public String deleteItem(@RequestParam("skuId") Integer skuId) {

        cartService.deleteIdCartInfo(skuId);

        return "redirect:http://cart.gulimall.com/cart.html";

    }


    @GetMapping("/addToCart")
    public String addToCart(@RequestParam("skuId") Long skuId, @RequestParam("num") Integer num, RedirectAttributes ra) throws ExecutionException, InterruptedException {
        CartItem cartItem = cartService.addToCart(skuId, num);

        ra.addAttribute("skuId", skuId);
        return "redirect:http://cart.gulimall.com/addToCartSuccess.html";
    }

    @GetMapping("/addToCartSuccess.html")
    public String addToCartSuccessPage(@RequestParam("skuId") Long skuId, Model model){
        CartItem cartItem = cartService.getCartItem(skuId);

        model.addAttribute("item", cartItem);

        return "success";
    }
}
